Clutch mechanism for lacing-hook-setting machines.



' No. 884,051. I PAT-ENTED APR. 7,1908.

- s. E. TAFT.

CLUTCH MECHANISM FOR LACING HOOK SETTING MACHINE-S.

- APPLICATION FILED JARS. 1908. V

3 SHBETSBHEBT 1.

ms NORRIS PETERS co wAsI-lmaram u. c.

- PATENTBD APR. 7, 1908.

S. E. TAFT. CLUTCH MECHANISM FOR LAGING HOOKSETTING MACHINES.

APPLIOATION FILED JAN, 3. 1908.

witneases.

No. 884.051. PATENTED APR. 7, 1908.

. I s. B. TAFT. CLUTCH MECHANISM FOR. LAOING HOOK SETTING MACHINES;

APPLICATION FILED JAN. 3. 1908.

3 SHEETS-SHEET 3.

20627265565 r [71 ueniar.

ErERs co., wAsmncmu, u. c.

UNITED STATES PATENT OFFICE.

SYDNEY E. TAFT, OF SOUTH FRAMINGHAM, MASSACHUSETTS, ASSIGNOR TO AMERICANLACING HOOK CO., A CORPORATION OF NEW JERSEY.

CLUTCH MECHANISM FOR LAOILIG-HOOK-SETTING MACHINES.

To all whom it may concern:

Be it known that I, SYDNEY E. TAFT,,a citizen of the United States,residing at South Framingham, in the county of Middle- 5 sex and Stateof Massachusetts, have invented new and useful Improvements in ClutchMechanism for Lacing-Hook-Setting Machines, (Case 13,) of which thefollowing is a specification.

This invention relates to a clutch mechanism which is particularlyadapted to be used in connection with machines for setting lacing hooksin the uppers of boots and shoes, the object of the invention being toprovide a clutch mechanism which can be set so as to drive one, two,three, four, five or more hooks in the upper of a boot or shoe and whichis also capable of being operated by the operator at any desired time sothat in case a lacing hook becomes jammed or improperly driven theoperator can instantly stop the machine, remove the hook from the upperof the boot or shoe and set a new hook in the place of the hook whichhas been removed and continue the operation to insert the desired numberof hooks, say five in number, and then begin a new cycle of operationsin which the mechanism will automatically disconnect the clutch from theshaft at the end of any predetermined number'of hooks which may bedriven in the upper.

The device is also adapted to be set so that the automatic throw-out ofthe clutch is eliminated and the clutch may be used in the usual mannerby the operator setting as many hooks as desired and operating the sameby releasing the treadle when the number of hooks desired have been setin the upper.

While I have illustrated and described my improved clutch mechanism asadapted to be particularly used in connection with a lacing hook settingmachine, it is evident that the same may be used in connection withother mechanisms in which it is desired to have the main driving shaftmake a certain number of rotations and then be automaticallydisconnected from the driving pulley and also in which said drivingshaft is under the control ofthe operator independent of the automaticclutch operating devices.

In another application filed of even date 55 herewith I have set forthanother embodi- Specification of Letters Patent.

Application filed January 8, 1908.

Patented April 7, 1908.

Serial No. 409,760.

.ment of my invention for performing the same functions as, the presentinvention.

The invention consists in the combination and arrangement of parts setforth in the following specification and particularly pointed out in.the claims thereof.

Referring to the drawings: Figure 1 is a front elevation of my improvedstop mechanism, the driving shaft being shown broken away. Fig. 2 is aside elevation of the same 5 as viewed from the right of Fig. 1. Fig. 3is a sectional elevation taken on line 33 of Fig. 2. Fig. 4 is a detailelevation of the clutch per se, the shaft and tripper slide shown insection. Fig. 5 is a detail elevation of the rotary holder disk with thetripper slide and shaft shown in section. Fig. 6 is an edge view of thesame. Fig. 7 is a detail side elevation of the arm which is attached tothe rotary holder disk. Fig. 8 is an edge view of the same. Fig. 9 is adetail side elevation of the tripper slide.

Like numerals refer to like parts throughout the several views of thedrawings.

In the drawings, 10 is the main driving shaft j ournaled to rotate inthe frame 9.

11 is one clutch member keyed to said shaft.

12 is another member of the clutch consisting of a pulley which is freeto rotate upon the shaft. A locking dog or arm 13 is pivoted to themember 11 and when in the position illustrated in Fig. 2, that is, withthe tripper slide 14 in engagement therewith, said lockin dog allows theclutch pulley to rotate free ly without rotating the shaft. When,however, the tripper slide 14 is withdrawn from engagement .with thelocking dog 13, said locking dog is immediately thrown outwardly at itsfree end by'the spring 15 and is then engaged, at the shoulder 16thereon, by one of the clutch teeth 17, 17. The two members of theclutch 11 and 12 are then looked together and the rotation of the pulleyin the direction of the arrow (1- thereon (Fig. 4) causes the member 11to be rotated, together with the shaft .10 to which it is fastened, inthe direction of said arrow. When the machine is at rest and theoperator is placing an upper in position in readiness to have the lacinghooks set therein, the pulley 12 is free to rotate and the tripper slide14 is in engagement with the locking dog 13, as illustrated in thedifferent figures of the drawings.

' device.

The tripper slide 14 has an arm 18 thereon which is held against ashoulder 19 by a spring 20, one end of said spring bearing against saidarm, the other against a collar 21 which is fastened to the tripperslide 14. The tripper slide 14, arm 18 and spring 20 with the collar 21form, as a whole, a tripper It will be understood that the tripper slide14 is arranged to slide in ways 22 ormed in the frame 9 and has a pin 23fast thereto, whereby the slide may be moved by either of the levers 24or 25, Fig. 1.

The treadle lever 24 is connected by a rod 26 to asuitable treadle (notshown in the drawings) and the treadle lever 25 is connected by asuitable rod 27 to another treadle not shown in the drawings. Both ofthe right angle levers 24 and 25 are pivoted to a stud 28 fast to theframe 9.

A rotary holder 29 is adapted to hold the tripper out of engagement withthe clutch in order to allow the locking dog to spring outwardly andlock the pulley 12 to the member 11. Said rotary holder 29 consists of adisk 30 having teeth 31 upon its periphery and teeth 32 upon one facethereof. Said disk is also provided with a notch or large tooth 33. Thedisk 30 is provided with a series of holes 0, 1, 2, 3, 4 and 5, each ofwhich is adapted to receive a locking pin 34 fast to an arm 35, the arm35 being fastened to a stud 36 which is adapted to move longitudinallythereof and to rotate in the arms 37 and 38 of a bracket '39 which isfastenedto the frame 9. A knob or handle 40 is fastened to the outer endof the stud 36 and a torsional spring 41 encircles said stud and alsothe hub upon the arm 35, one end of said s ring bearing against thelocking pin 34 and t e other end thereof being attached to the bracket39, the tendency of said spring being to hold the free end 42 of the arm35 against a fixed stop or lug 43 upon the bracket 39 when the tripperslide is withdrawn from engagement with the clutch and to hold the largetooth 33 against the arm 18 when the tripper slide is thrown forward andis in engagement with the clutch or with the locking dog 13 forming aportion of said clutch.

An intermittent rotary movement is imparted to the holder 29 by a pawl44 which is ida ted to engage the teeth 31 and is ivotally supportedupon a crank-pin 45 w iich projects from one end. of the shaft 10. Aspring 46 holds the pawl 44 either against a guide-pin 47 or inengagement with. the teeth 31, as the case may be and as hereinafterdescribed. A spring 48 holds the tripper slide 14 normally in theposition illustrated in Fig. 1that is, in engagement with the lockingdog 13, whereby the two members 11 and 12 of the clutch are disengagedfrom each other and the pulley 12 is free to rotate without rotating theshaft 10.

Having thus specifically described my improved clutch mechanism, I willnow pro ceed to describe the general operation of the same. Assuming theparts to be in the posi tions illustrated in Figs. 1 and 2, the operatordepresses the treadle which is connected by the rod 26 to the lever 24.This will move the pin 23 and the tripper slide 1.4 to which itisattached toward the right, together with the different portions of thetripper which are supported upon said tripper slide, including the arm18. Assuming that the stop-pin 34 is projecting into the hole 3, as seenin Fig. 5, it will be understood that as soon as the arm 18 is movedtoward the right (Fig. 1) to a sufficient dis tance to clear the largetooth 33, the spring 41 will cause the holder 29 to rotate until thefree end 42 of the arm 35 abuts against the stop 43. Thus the portion ofthe disk 30 which has the teeth upon its face will pass across the innerend of the arm 1.8 and thus lock the tripper slide 14 out of engagementwith the locking dog. The clutch pulley now rotating and being locked bythe locking dog 13 to the other member of said clutch rotates the shaft10, thus moving the pawl 44 forward until it engages one of the teeth 31upon the clutch disk and moves said disk forward one tooth at eachrotation until the tripper slide is freed and moved toward the left(Fig. 1) by the spring 48 until the forward end of said slide engagesthe locking dog 13 and throws the clutch out of engagement with theshaft, so that the pulley 12 rotates freely thereon and the machine isstopped.

The pawl in the hereinbefore described operation is guided at its outerend, during a portion of the rotation of the shaft, by the pin 47 sothat at each rotation of the shaft the awl moves througha sufficientdistance, whi e in contact with one of the teeth 31, to move said diskthrough the space of one of the teeth upon its periphery. The inner endof the arm 18 during this intermittent feeding of the disk, it will beunderstood is in engagement with the teeth 32 and the number of teethwhich the pawl 44 feeds before the arm 18 and the trip er slide to whichit is attached are release depends upon the hole in which said pin 34 isinserted. If said pin 34 is inserted in the hole 0, then the free end ofthe arm 42 will abut against the stop 43, when the large tooth 33 is inthe position illustrated in Figs. 2 and 5, so that when the parts are inthis position and the tripper slide is thrown backward by the operator,said tripper slide would have to be held out by the operator pressingupon the treadle, as the holder disk 30 wouldnot move across the path ofmovement of the inner end of the arm 18, and when the locking pin is inthe hole 0 this automatic clutch operating mechanism is out of operationat all times. When the locking dog is placed in the hole 1, then therotary disk will move across the inner end of the arm 18 to the extentof one tooth before thefree end 42 of the arm 35 engages the stop 43 andso on up to the full number of holes 2, 3, 4, and 5, which are in thedisk 30, so that it will be evident that the device may be used to setone, two, three, four or five lacing hooks or like devices beforestopping the rotation of the shaft, as may be desired, and according tothe location in which the locking pin 34 is placed relatively to thedisk 30.

If, during the hereinbefore described operation, it is desired to stopthe machine before the same shall be automatically stopped at the end ofits sequence of movements, it may be done by the operator pressing uponthe treadle connected by the rod 27 to the treadle lever 25, thusrocking said treadle lever which engages the pin 23 andmoves the slide14 toward the left (Fig. 1) and into engagement with the locking dog 13.It will be understood that the slide 14 can move toward the left (Fig.1.) while the arm 18 remains stationary, said slide being arranged sothat it can slide in said arm and when released will be carried back toits original position (that is, with the shoulder 19 on said slide incontact with the arm 18) by the expansion of the spring 20 so that atany time the operator can stop the machine, as described, by moving thetripper slide 14 across the path of the locking dog 13 and thusdisconnecting the members 11 and 12 of the clutch to allow the pulley torotate freely without rotating the shaft 10.

Having thus described my invention, what I claim and desire by LettersPatent to secure is 1. In a clutch mechanism, a driving shaft, a memberfast to said driving shaft, a member rotatable on said shaft, and meansto lock said members together; in combination with a tripper slideadapted to engage said locking means and disconnect said clutch membersfrom each other, means to move said tripper slide out of engagement withsaid locking means, a rotary holder adapted to hold said tripper slideout of engagement with said locking means, and instrumentalities adaptedto rotate said member to release said tripper slide to engage saidlocking means and disconnect said clutch members at the end of apredetermined number of rotations of said shaft.

2. In a clutch mechanism, a driving shaft, a member fast to said drivingshaft, a member rotatable onsaid shaft, and means to look said memberstogether in combination with a tripper slide adapted to engage saidlocking means and disconnect said clutch members from each other, meansto move said tripper slide out of engagement with said locking means, arotary holder adapted to hold said tripper slide out of engagement withsaid locking means, instrumentalities adapted to rotate said rotarymember to release said tripper slide to engage said locking means anddisconnect said clutch members at the end of apredetermined number ofrotations of said shaft, and an adjustable stop adapted to limit therotation of said rotary member relatively to said tripper slide, wherebysaid predetermined number of rotations may be varied. I

3. In a clutch mechanism, a driving shaft, a member fast to said drivingshaft, a member rotatable on said shaft, and means to lock said memberstogether; in combination with a tripper slide adapted to engage saidlocking means and disconnect said clutch members from each other, meansto move said tripper slide out of engagement with said locking means, arotary holder adapted to hold said tripper slide out of engagement withsaid locking means, instrumentalities adapted to rotate said holder torelease said tripper slide to engage said locking means and disconnectsaid clutch members at the end of a predetermined number of rotations ofsaid shaft, an arm adjustably mounted upon said rotary holder, a stop,and a spring acting to hold said arm against said stop, whereby therotation of said holder in one direction is regulated.

4. In a clutch mechanism, a driving shaft, a member fast to said drivingshaft, a mem ber rotatable on said shaft, and means to lock said memberstogether; in combination With a tripper slide adapted to engage saidlocking means and disconnect said clutch members from each other, meansto move said tripper slide out of engagement with said locking means, arotary holder adapted to hold said tripper slide out of engagement withsaid locking means, instrumentalities adapted to rotate said holder torelease said tripper slide to engage said locking means and disconnectsaid clutch members at the end of a predetermined number of rotations ofsaid shaft, and mechanism to imp art an intermittent rotary motion tosaid holder.

5. In a clutch mechanism, a driving shaft, a member fast to said drivingshaft, a mem ber rotatable on said shaft, and means to lock said memberstogether; in combination with a tripper slide adapted to engage saidlocking means and disconnect said clutch members from each other, meansto move said tripper slide out of engagement with said locking means, arotary holder adapted to hold said tripper slide out of engagement withsaid locking means, teeth on said rotary holder, and a pawl connected tosaid shaft adapted to engage said teeth and impart an intermittentrotary movement to said holder to release said tripper slide for thepurpose specified.

6. Ina clutch mechanism, a driving shaft, a member fast to said drivingshaft, a member rotatable on said shaft, and means to lock said memberstogether; in combination with a tripper slide adapted to engage saidlocking means and disconnect said clutch members from each other, meansto move said tripper slide out of engagement with said locking means, arotary holder adapted to hold said tripper slide out of engagement withsaid locking means, teeth on said rotary holder, a pawl connected tosaid shaft adapted to engage said teeth and impart an intermittentrotary movement to said holder to release said tripper slide for thepurpose specified, teeth on said holder adapted to be engaged by saidtripper slide, and a spring acting to hold said tripper slide inengagement with said last named teeth.

7. In a clutch mechanism, a driving shaft, a member fast to saiddrivingshaft, a member rotatable on said shaft, and means to lock saidmembers together; in combination with a tripper, consisting of a slide,an arm movable on said slide, and a spring interposed between said armand slide and acting to hold said arm against a shoulder on said slide,said slide adapted to engage said look ing means and disconnect saidclutch members from each other, means to move said slide out ofengagement with said locking means, a rotary holder adapted to hold saidtripper out of engagement with said locking means, and instrumentalitiesadapted to rotate said holder to release said tripper and allow said triper slide to engage said locking means and cisconnect said clutchmembers at the end of a predetermined number of rotations of said shaft.

8. In a clutch mechanism, a driving shaft, a member fast to said drivingshaft, a member rotatable on said shaft, and means to lock said memberstogether; in combination with a tripper consisting of a slide, an armmovable on said slide and a spring interposed between said arm and slideand actin to hold said arm against a shoulder on saic slide, said slideadapted to engage said looking means and disconnect said clutch membersfrom each other, means to move said slide out of engagement with saidlocking means, a rotary holder adapted to hold said tripper out ofengagement with said locking means, and mechanism adapted to move saidslide relatively to said arm to engage said locking means and disconnectsaid clutch members.

9. In a clutch mechanism, a driving shaft,

a member fast to said driving shaft, a member rotatable on said shaft,and means to lock said members together; in combination with a'tripperslide adapted to engage said locking means and disconnect said clutchmembers from each other, means to move said tripper slide out ofengagement with said locking means, and a rotary holder adapted to holdsaid tripper slide out of engagement with said locking means,instrumentalities adapted to rotate said holder to release said tripperslide, said rotary holder consisting of a toothed disk, an arm rotatablyand adjustably mounted thereon, and a stop against which said arm isadapted to abut.

10. In a device of the character described, a rotary holder consistingof a disk with teeth on one face thereof and with teeth on itsperiphery, an arm adjustably mounted on said rotary holder, a stop, aspring acting to move said rotaryholder until said arm shall engage saidstop, a tripper slide, and an arm yieldingly mounted on said tripperslide adapted to engage the teeth upon the face of said disk, and meansada ted to engage the teeth on the periphery of said disk and impart arotary motion to said disk to move said arm away from said stop.

11. In a device of the character described, a rotary holder consistingof a disk with teeth on one face thereof and with teeth on itsperiphery, an arm adjustably mounted upon said rotary holder, a stop, aspring acting to move said rotary holder until said arm shall engagesaid stop, mechanism to impart a rotary motion to said holder to movesaid arm away from said stop consisting of a shaft and a awl pivotallyconnected to said shaft and a apted to engage the teeth upon theperiphery of said holder, a tripperslide, and an arm yieldingly mountedon said tripper slide adapted to engage the teeth upon the face of saiddisk.

12. In a device of the character described, a rotary holder consistingof a disk with teeth on one face thereof and with teeth on itsperiphery, an arm adjustably mounted upon said rotary holder, a stop, aspring acting to move said rotary holder until said arm shall engagesaid stop, mechanism to impart a rotary motion to said holder to movesaid arm away from said stop, consisting of a shaft and a pawl pivotallyconnected to said shaft and adapted to engage the teeth upon theperiphery of said holder, a tripper slide, an arm yieldingly mounted onsaid tripper slide adapted to engage the teeth upon the face of saiddisk, a clutch mounted on said shaft, means adapted to lock said clutchto said shaft, and means to move said tripper slide into engagement withsaid locking means and relatively to said arm while said arm .is inengagement with the teeth on the face of said disk.

In testimony whereof Ihave hereunto set my hand in presence of twosubscribing witnesses.

SYDNEY E. TAFT. Witnesses:

LOUIS A. JoNEs, CHARLES S. GooDING.

